*{
    margin: 0;
    padding: 0;
    font-size: 12px;
}
body{
    background-color: #3d90d2;
}
#father{
    width: 780px;
    height: 1005px;
    margin: auto;
}
ul{
    list-style: none;
}
li:hover{
    position: relative;
    bottom: 2px;
    right: 2px;
}
